OFFSET
1,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (0,2,0,-1).
FORMULA
G.f.: x*(1+10*x) / ( (x-1)^2*(1+x)^2 ). - R. J. Mathar, Jun 18 2014
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Mark Dols, Feb 13 2010
STATUS
approved